protected void addUnmappedFieldToMain(DatabaseField field, Info info) {
for (int operation = INSERT; operation <= UPDATE; operation++) {
if (info.is(operation)) {
addFieldToMain(operation, UNMAPPED, field);
addFieldToMain(operation, ALL, field);
}
}
}
protected void addMappedFieldToMain(DatabaseField field, Info info) {
for (int operation = INSERT; operation <= UPDATE; operation++) {
for (int state = RETURN_ONLY; state <= WRITE_RETURN; state++) {
if (info.is(operation, state)) {
addFieldToMain(operation, state, field);
addFieldToMain(operation, MAPPED, field);
addFieldToMain(operation, ALL, field);
}
}
}
}
boolean equals(Info infoToCompare) {
if (this == infoToCompare) {
return true;
}
if (!getField().equals(infoToCompare.getField())) {
return false;
}
if ((getField().getType() == null) && (infoToCompare.getField().getType() != null)) {
return false;
}
if ((getField().getType() != null)
&& !getField().getType().equals(infoToCompare.getField().getType())) {
return false;
}
if (isInsert() != infoToCompare.isInsert()) {
return false;
}
if (isInsertModeReturnOnly() != infoToCompare.isInsertModeReturnOnly()) {
return false;
}
if (isUpdate() != infoToCompare.isUpdate()) {
return false;
}
return true;
}
/** INTERNAL: */
public void initialize(AbstractSession session) {
clearInitialization();
main = new Collection[NUM_OPERATIONS][MAIN_SIZE];
// The order of descriptor initialization guarantees initialization of Parent before children.
// main array is copied from Parent's ReturningPolicy
if (getDescriptor().isChildDescriptor()) {
ClassDescriptor parentDescriptor =
getDescriptor().getInheritancePolicy().getParentDescriptor();
if (parentDescriptor.hasReturningPolicy()) {
copyMainFrom(parentDescriptor.getReturningPolicy());
}
}
if (!infos.isEmpty()) {
Hashtable infoHashtable = removeDuplicateAndValidateInfos(session);
Hashtable infoHashtableUnmapped = (Hashtable) infoHashtable.clone();
for (Enumeration fields = getDescriptor().getFields().elements();
fields.hasMoreElements(); ) {
DatabaseField field = (DatabaseField) fields.nextElement();
Info info = (Info) infoHashtableUnmapped.get(field);
if (info != null) {
infoHashtableUnmapped.remove(field);
if (verifyFieldAndMapping(session, field)) {
if (info.getField().getType() == null) {
addMappedFieldToMain(field, info);
} else {
addMappedFieldToMain(info.getField(), info);
fieldIsNotFromDescriptor(info.getField());
}
}
}
}
if (!infoHashtableUnmapped.isEmpty()) {
Enumeration fields = infoHashtableUnmapped.keys();
while (fields.hasMoreElements()) {
DatabaseField field = (DatabaseField) fields.nextElement();
Info info = (Info) infoHashtableUnmapped.get(field);
if (verifyField(session, field, getDescriptor())) {
if (field.getType() != null) {
addUnmappedFieldToMain(field, info);
fieldIsNotFromDescriptor(field);
session.log(
SessionLog.FINEST,
SessionLog.QUERY,
"added_unmapped_field_to_returning_policy",
info.toString(),
getDescriptor().getJavaClassName());
} else {
if (getDescriptor().isReturnTypeRequiredForReturningPolicy()) {
session
.getIntegrityChecker()
.handleError(
DescriptorException.returningPolicyUnmappedFieldTypeNotSet(
field.getName(), getDescriptor()));
}
}
}
}
}
}
initializeIsUsedToSetPrimaryKey();
}
protected Hashtable removeDuplicateAndValidateInfos(AbstractSession session) {
Hashtable infoHashtable = new Hashtable();
for (int i = 0; i < infos.size(); i++) {
Info info1 = infos.get(i);
info1 = (Info) info1.clone();
DatabaseField descField = getDescriptor().buildField(info1.getField());
if (info1.getField().getType() == null) {
info1.setField(descField);
} else {
// keep the original type if specified
info1.getField().setName(descField.getName());
info1
.getField()
.setTableName(
getDescriptor().getDefaultTable().getQualifiedNameDelimited(session.getPlatform()));
}
Info info2 = (Info) infoHashtable.get(info1.getField());
if (info2 == null) {
infoHashtable.put(info1.getField(), info1);
} else {
Info infoMerged = mergeInfos(info1, info2, session, getDescriptor());
if (infoMerged != null) {
// substitute info2 with infoMerged
infoHashtable.put(infoMerged.getField(), infoMerged);
} else {
// couldn't merge info1 and info2 due to a conflict.
// substitute info2 with info1
infoHashtable.put(info1.getField(), info1);
}
}
}
return infoHashtable;
}
// precondition: info1.field.equals(info2.field);
static Info mergeInfos(
Info info1, Info info2, AbstractSession session, ClassDescriptor descriptor) {
boolean ok = true;
DatabaseField fieldMerged = info1.getField();
if (info2.getField().getType() != null) {
if (info1.getField().getType() == null) {
fieldMerged = info2.field;
} else if (!info1.getField().getType().equals(info2.getField().getType())) {
session
.getIntegrityChecker()
.handleError(
DescriptorException.returningPolicyFieldTypeConflict(
info1.getField().getName(),
info1.getField().getType().getName(),
info2.getField().getType().getName(),
descriptor));
ok = false;
}
}
boolean isInsertMerged = false;
boolean isInsertModeReturnOnlyMerged = false;
if (info1.isInsert() && !info2.isInsert()) {
isInsertMerged = true;
isInsertModeReturnOnlyMerged = info1.isInsertModeReturnOnly();
} else if (!info1.isInsert() && info2.isInsert()) {
isInsertMerged = true;
isInsertModeReturnOnlyMerged = info2.isInsertModeReturnOnly();
} else if (info1.isInsert() && info2.isInsert()) {
isInsertMerged = true;
isInsertModeReturnOnlyMerged = info1.isInsertModeReturnOnly();
if (info1.isInsertModeReturnOnly() != info2.isInsertModeReturnOnly()) {
session
.getIntegrityChecker()
.handleError(
DescriptorException.returningPolicyFieldInsertConflict(
info1.getField().getName(), descriptor));
ok = false;
}
}
if (ok) {
// merging
boolean isUpdateMerged = info1.isUpdate() || info2.isUpdate();
return new Info(fieldMerged, isInsertMerged, isInsertModeReturnOnlyMerged, isUpdateMerged);
} else {
// there is a problem - can't merge
return null;
}
}